Amazing Slow Downer vs EnsembleOS

Amazing Slow Downer slows music without changing its pitch, helping musicians study songs and techniques through repeated listening. On Windows and Mac, playback speed can range from 20% to 200%, and pitch can be shifted by semitones or cents. The Windows version handles MP3, Wave, Windows Media Audio, Ogg, FLAC, and AAC/M4A files in real time. On iOS and Android, speed ranges from 25% to 200%; those versions also support seamless loops during playback and changes to tuning or musical key. Computer versions can be controlled with USB HID devices and MIDI controllers, while the iOS page also describes Bluetooth/MIDI remote control. Mac and Windows versions do not support Spotify or Apple Music playback, and DRM-protected iTunes M4P files are unsupported. Free trial software is available for Windows and Mac, and the mobile pages link to free lite versions. Prices are $9.95, paid once for Android, $14.95, paid once for iOS, and $39.95, paid once for Mac/Windows. Each purchase is a single-user license, with a separate license required for each platform.

EnsembleOS is a web platform that combines practice material, rehearsal planning, communication, and activity reporting for worship teams, choirs, and other ensembles. Its waveform player loops recordings or scores and slows playback without changing pitch. AI stem splitting separates uploaded recordings into parts such as vocals, drums, bass, guitar, piano, and accompaniment. PDF scores can become playable scores with separated parts, a playback-synced cursor, and measure navigation, although conversion may need checking. Rehearsal tools provide timed agendas, RSVP tracking, attendance records, and pieces linked to rehearsal slots. Analytics cover practice activity, pieces needing work, engagement trends, and exportable reports. Chat includes section rooms, mentions, file sharing, and AI moderation. Audio uploads support MP3, WAV, FLAC, OGG, and M4A; scores support PDF and MusicXML. The service requires internet access for scores, audio, and most ensemble data, and does not offer full offline media downloads. Billing is handled by directors or organisers; members use included features at no cost.